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776866-01

Single-Chip IEEE 488.2 Talker/Listener ASIC

National Instruments Corporation 

TNT4882

Single-Chip IEEE 488.2 Talker/Listener ASIC

Waveforms continued from page 11

DRQ

DACKN

tDU

tDS

WRN

tDH

DATA15-0

tWH

tWS

Figure 10. DMA Write

ISA Mode DC Characteristics

Parameter

Supply voltage

Voltage input low

Voltage input high

Voltage output low

Voltage output high

Supply current

Output current low

DATA15-0

DRQ, INTR, IOCS16, IOCHRDY

Output current low

D7_0_OEN

Output current low

D15_8_OEN, TP_INTWTN

Output current low

KEYDQ, KEYRSTN, KEYCLKN

Output current low

DIO8-1N, RENN, ATNN, IFCN, SRQN,

DAVN, EOIN, NDACN, NRFDN

Output current high

DATA15-0

DRQ, INTR

Output current high

D7_0_OEN

Symbol

VDD

VIL

VIH

VOL

VOH

IDD

IOL

IOL

IOL

IOL

IOL

IOH

IOH

Output current high

IOH

D15_8_OEN,

TP_INTWTN

Output current high

IOH

KEYDQ, KEYRSTN,

KEYCLKN

Output current high

DIO8-1N, RENN, ATNN, IFCN, SRQN,

IOH

DAVN, EOIN, NDACN, NRFDN

Input leakage current – all pins

IIH

Output leakage current – all pins

IOZ

Min

Max

Unit

4.75

5.25

V

-0.5

0.8

V

2.0

VCC

V

0.0

0.4

V

2.4

VDD

V

90

mA

24

mA

16

mA

8

mA

2

mA

48

mA

-12

mA

-24

mA

-8

mA

-16

mA

-4

mA

-8

mA

-1

mA

-2

mA

-16

mA

±10

mA

±10

mA

Notes

50 mA, typical

VOL = 0.4 V

VOL = 0.4 V

VOL = 0.4 V

VOL = 0.4 V

VOL = 0.4 V

VOH = VDD-0.5 V

VOH = 2.4 V

VOH = VDD-0.5 V

VOH = 2.4 V

VOH = VDD-0.5 V

VOH = 2.4 V

VOH = VDD-0.5 V

VOH = 2.4 V

VOH = 2.4 V

VDD = 5.5 V

VDD = 5.5 V

12 National Instruments

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